Make the Electrical Connection
1.Disconnect power.
2.Determine the location where the wiring conduit will be routed through the ceiling or wall between the makeup air switch duct and the motorized damper.
3.Drill a hole at this location.
4.Locate the electrical terminal boxes in the makeup air switch duct and the motorized damper.
Remove the terminal box covers and set the covers and screws aside.
5.Determine the knockouts in terminal boxes for motorized damper, makeup air switch duct and house junction box that will be used.
Remove knockouts and install a ½" (12.7 mm) UL listed or CSA approved strain relief at each location.
6.Run separate wiring between the house junction box and the terminal boxes for the motorized damper and the makeup air switch duct.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Connect ground wire to green ground wire in terminal box.
Replace all parts and panels before operating.
Failure to do so can result in death, fire, or electrical shock.
7.Connect green (yellow/green) wires from makeup air switch duct and motorized damper to house ground using UL listed wire connectors.
8.Connect brown wire from makeup air switch duct to the black wire(s) from the motorized damper using UL listed wire connectors.
9.Connect black wire from makeup air switch duct to the house line black wire using a UL listed wire connector.
10.Connect the white wire(s) from the motorized damper to the house neutral white wire(s) using UL listed wire connectors.
NOTE: The 10" (25.4 cm) Makeup Air Kit must be installed with 2 motorized dampers. The lightest figure shown is the connection for the second motorized damper.
wall | House |
| House |
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| ground |
| neutral |
| green |
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| white |
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| 120VAC |
| black |
| House |
| black | line | |
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|
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| |
| black | yellow/ | |
|
| ||
| brown | green | |
| black |
| House |
|
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| |
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| ground |
House
neutral
white
green
House ground
10" (25.4 cm) Makeup air installation
Check Operation
Once the make up air switch duct and the motorized damper(s) are installed, the installer should confirm that the motorized damper opens and closes in conjunction with signals from the hood.
■The motorized damper should close or be closed when the range hood speed switch is Off or On at low speed.
■The motorized damper should open when the range hood speed switch is set at medium speed or higher.
A qualified HVAC contractor should also ensure the proper operation and venting of all combustion equipment in the home.
Makeup Air Kit Maintenance
Regular maintenance is necessary to ensure the proper operation of the makeup air system. Failure to conduct routine maintenance can reduce the ability of the damper to introduce fresh air into the home. Regular maintenance should include the following activities:
■Maintain a clear opening at the outdoor end cap, keeping snow, leaves or vegetation from building up at the end cap.
■Clean or replace the interior filter(s) that serve to filter fresh air before it enters the home.
■During regular HVAC maintenance, have the mechanical contractor inspect the damper system for proper operation.
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